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#182117 - 01/27/09 09:32 PM Re: Sui generis [Re: The Pook]
twosleepy Offline
old hand

Registered: 02/28/08
Posts: 876
Loc: western NY

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#182118 - 01/27/09 09:49 PM Re: Sui generis [Re: twosleepy]
tsuwm Offline
Carpal Tunnel

Registered: 04/03/00
Posts: 10523
Loc: this too shall pass
yeah, I watched a bit of the women's quarters draw tonight (tomorrow : ), and the radiant heat in the black seats was 171F - the air temp was like 101F.

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#182119 - 01/27/09 09:52 PM Re: Sui generis [Re: twosleepy]
Faldage Offline
Carpal Tunnel

Registered: 12/01/00
Posts: 13803
Surface temperature on some highly absorptive surface may be considerably higher than air temperature.

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#182122 - 01/28/09 07:06 AM Re: Sui generis [Re: Faldage]
The Pook Offline
old hand

Registered: 02/20/08
Posts: 1067
Loc: Tasmania
It was pretty hot here today too, around 32C. But Melbourne had 43C! (Don't know what that was in the sun on the black seats, probably about 70C!) They closed the roof for the second half of the match that Serena Williams won.

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#182124 - 01/28/09 07:39 AM Re: Sui generis [Re: The Pook]
tsuwm Offline
Carpal Tunnel

Registered: 04/03/00
Posts: 10523
Loc: this too shall pass
Originally Posted By: The Pook
It was pretty hot here today too, around 32C. But Melbourne had 43C! (Don't know what that was in the sun on the black seats, probably about 70C!) They closed the roof for the second half of the match that Serena Williams won.


that's the one I was watching - 171F! (77C?)

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#182130 - 01/28/09 12:15 PM Re: Sui generis [Re: tsuwm]
Myridon Offline
addict

Registered: 10/24/05
Posts: 557
Loc: Dallas, TX
Here in Texas, we normally have several weeks every year with high "official" temperatures over 100F (and over 110 is not unheard of and I've experienced 120 a few times) and it's not commonly reported about how this and that surface in the full sun is over 140 nor do we put thermometers out in the sun and claim it's accurate.

If it weren't the hottest week in Melbourne as a news reporting sensation, wouldn't these inflated temperatures readings still be proportional (if not the same?) to the official readings, i.e. if it were only 90F, wouldn't a black surface in the sun still be over 120F? Wow, that sounds really hot!!! but it probably happens all the time.

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#182137 - 01/28/09 06:18 PM Re: Sui generis [Re: Myridon]
The Pook Offline
old hand

Registered: 02/20/08
Posts: 1067
Loc: Tasmania
Originally Posted By: Myridon
Here in Texas, we normally have several weeks every year with high "official" temperatures over 100F (and over 110 is not unheard of and I've experienced 120 a few times) and it's not commonly reported about how this and that surface in the full sun is over 140 nor do we put thermometers out in the sun and claim it's accurate.

If it weren't the hottest week in Melbourne as a news reporting sensation, wouldn't these inflated temperatures readings still be proportional (if not the same?) to the official readings, i.e. if it were only 90F, wouldn't a black surface in the sun still be over 120F? Wow, that sounds really hot!!! but it probably happens all the time.

When you think about it, one has to take the accuracy of all historical temperature records with a bit of a grain of salt, since the kind of shelter providing the "in the shade" part of the formula has not always been standard. An analogue thermometer read by failing eyesight in a wooden box might conceivably give more variable results than a modern digital weather station like these ones. At any given (manual) weather station at any given time the accuracy depends on the construction (and maintenance) of the weather station and the competence of the human recorder. There is even of course the possibility of local pride inflating or deflating figures to break a record. However, the overall picture and wider averages should be reliable as such possible vagaries even out over time.

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#182144 - 01/29/09 02:33 AM Re: Sui generis [Re: The Pook]
Zed Offline
Pooh-Bah

Registered: 08/27/02
Posts: 2154
Loc: British Columbia, Canada
the players were not however in a shady hammock but out on that black surface running around, slamming balls and trying to focus. It is a wonder they weren't injured whatever the official shaded weatherman was experiencing.

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#182146 - 01/29/09 05:48 AM Re: Sui generis [Re: Zed]
The Pook Offline
old hand

Registered: 02/20/08
Posts: 1067
Loc: Tasmania
Actually it's blue. I think it's some of the seats that are black.

Tasmania had record highs today. Flinders Island just off the coast north from here (between here and Melbourne) scored our all time state highest of 41C (106F). That was 19C (34F) above average! Here we met our previous record for a January day of 35.6C. It's still over 30 in my study at 10pm.

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#182159 - 01/29/09 01:14 PM Re: Sui generis [Re: Zed]
Myridon Offline
addict

Registered: 10/24/05
Posts: 557
Loc: Dallas, TX
Originally Posted By: Zed
It is a wonder they weren't injured whatever the official shaded weatherman was experiencing.

At the same time, you can't go sticking your thermometer into a cup of coffee that happens to be on the court and report the players experienced temperatures of 212F.

IMO, the reporters are being sensational. People do outdoor activities here when it is even hotter without complaining about the pavement being 150 degrees (unless they're barefoot). If the air that the players were breathing was really constantly 142F, I'm fairly sure they would soon lapse into a coma like a dog left in a car with the windows closed even if they weren't exercising vigorously.

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